Pith Number

pith:YN6BZR5D

pith:2011:YN6BZR5DWX5Z6CZEWV6PMGZGOI

not attested not anchored not stored refs pending

Stacked directed animals and multi-directed animals defined without using heaps of pieces

Svjetlan Fereti\'c

arxiv:1104.5121 v1 · 2011-04-27 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YN6BZR5DWX5Z6CZEWV6PMGZGOI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:23:22.602002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c37c1cc7a3b5fb9f0b24b57cf61b267227f74c894a60358dad779e6ec0a6bd46

Aliases

arxiv: 1104.5121 · arxiv_version: 1104.5121v1 · doi: 10.48550/arxiv.1104.5121 · pith_short_12: YN6BZR5DWX5Z · pith_short_16: YN6BZR5DWX5Z6CZE · pith_short_8: YN6BZR5D

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/YN6BZR5DWX5Z6CZEWV6PMGZGOI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: c37c1cc7a3b5fb9f0b24b57cf61b267227f74c894a60358dad779e6ec0a6bd46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f2f35b06aa913772b048d3f823575de1b3be94564aad6ced9d0216be83b3180",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-04-27T12:08:05Z",
    "title_canon_sha256": "a321b6f7b8c15c189accf7d39b8070e8b656f1c4cc2ebb60e2d63f2a297ddd97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5121",
    "kind": "arxiv",
    "version": 1
  }
}